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Change in regional left ventricular wall motion and thickness at 4 and 12 months [ Time Frame: 4 and 12 months ]

Change in infarct size at 4 and 12 months as assessed by "delayed enhancement" technique by MRI [ Time Frame: 4 and 12 months ]

Analysis of the myocardial infarct size and transmurality transmurality, time to PCI and coronary flow characteristics after PCI as predictor of LV remodeling and change after cell therapy [ Time Frame: baseline 4 and 12 months ]

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Ages Eligible for Study:

18 Years to 90 Years (Adult, Senior)

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

No

Criteria

Inclusion Criteria:

Visual LVEF at angiogram or echocardiography ≤45%

Treatment by primary PCI within 24 hours of the onset of chest pain or initial treatment with thrombolysis within the 12 hours followed by PCI within the 24 hours of the onset of chest pain